Where does “*mr̥kka” come from?

*mr̥kka (Proto-Nuristani) comes from Indo-Iranian *mŕ̥ts, from Proto-Indo-European meld-, from Proto-Indo-European mel-, from Proto-Indo-European mey- — to strengthen; to bind; to change, exchange.

Ancestry of “*mr̥kka”, step by step

*mr̥kka traces back through two separate lines of ancestry.

via Indo-Iranian *mŕ̥ts

Step	Language	Word	Meaning
1	Indo-Iranian	*mŕ̥ts	—
2	Proto-Indo-European	meld-	to beat, crush, grind
3	Proto-Indo-European	mel-	soft; tender; weak; to deceive; to rub
4	Proto-Indo-European	mey-	to strengthen; to bind; to change, exchange

via Proto-Indo-Iranian *mŕ̥ts

Step	Language	Word	Meaning
1	Proto-Indo-Iranian	*mŕ̥ts	—

Words derived from “*mr̥kka”

Every word from Proto-Indo-European mey- →Every word from Proto-Indo-European mel- →Every word from Proto-Indo-European meld- →